I agree that the 7.3 offers a lot of bang for the buck. My wife rides a 7.3 WSD because she loved the matte nickel color and hated the matte black on the 7.5 WSD.

The only problem with the 7.3 was the EF60 shifters; they were OK for me, but the trigger and thumb levers are poorly located for small hands. FWIW, I replaced the EF60's with Deore LX shifters (plus a 9 speed cassette and chain).